and a `@drawable/` of our own for the background instead. **The background is a vector drawable, not a colour and not five PNGs.** `drawable/ic_launcher_ground.xml` carries the desktop icon's own ground — concept 04's navy surface and the cyan glow off its top-left — mapped onto the whole 108-unit layer, every number the kit's `src-tauri/icons/icon.svg` multiplied by 108/1024. The flat `#05080B` was three quarters of what a masked tile shows (the falcon covers about a quarter of it), and the glow survives every mask: the visible top-left corner goes from `#05080B` to `#0E3543`. The `rx="232"` on the kit's rects is not carried over; on the phone the launcher's mask does that job. A vector rather than a PNG set because this artwork happens to fit one. Android's `android:type="radial"` is a circle — centre and radius, no transform of its own — and the kit's glow is `translate(270 220) rotate(43) scale(660)`, a **uniform** scale, so the ellipse *is* a circle and the rotation is a no-op. Had that scale been two numbers, no vector could have said it and this would be five rendered PNGs. The other cheap route, a `` of two ``s, is out on the linear axis alone: the concept's is 51.1° off horizontal, and a shape drawable's `android:angle` "must be a multiple of 45", with three evenly spaced stops at most. Folding `stop-opacity` into 8-bit alpha (0.18 → `2E`, 0.05 → `0D`) costs at most one level of 255 against the SVG's float composite. And a vector reaches sizes no PNG here does: the media card draws this same drawable at 512 px (below) and the Android 12+ splash slot is 240 dp, about 630 px on the Pixel, both past the 432 px an xxxhdpi PNG tops out at. What a vector cannot do is **dither**. Both forms are 8-bit and quantise identically — 122 colour steps down the diagonal at 432 px, longest flat run 43 px, over a total range of R 12 / G 49 / B 55 levels — so the form does not cause banding, but only a PNG could have been dithered out of it. If the phone's OLED contours, the answer is a dithered five-density set behind this same `@drawable/ic_launcher_ground` name: a file per density, and no XML moves.